Having troubles installing: Compatibility

When I go to create a new page on my website there is no “page attributes” section and so I can’t choose a template. I have templates where it is present but to be honest they’re sometimes boring looking, sometimes messy looking. I really like my theme with a nice neat slider sweeping across the screen.

Is there any way to make my theme compatible and if not are there themes with sliders that look neat that are already compatible with bbpress? Where would I find them?